Richard, We use a .0005" graduated radicle (100x). They call them dycascopes..they are little monocular scopes with a scale etched into the eye piece..probably available from most photo supply companies. Your machine may be more accurate (I assume to 4 places)but the quick reference check of a standard coupon feature works well for us. Doug Jeffery Electrotek, Inc. *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To subscribe/unsubscribe send a message <to: [log in to unmask]> * * with <subject: subscribe/unsubscribe> and no text in the body. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************